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(11)

EP 4 217 792 A1

(12)

(43) Date of publication: 02.08.2023 Bulletin 2023/31 (21) Application number: 21878730.7 (22) Date of filing: 07.10.2021

(51) International Patent Classification (IPC):  G02B 30/40(2020.01) B42D 25/328(2014.01) B42D 25/425(2014.01) G02B 30/56(2020.01) B42D 25/324(2014.01) B42D 25/373(2014.01) B42D 25/45(2014.01) B42D 25/23(2014.01) (52) Cooperative Patent Classification (CPC): G02B 30/40; B42D 25/324; G02B 5/1852; G02B 5/285; G02B 5/203; B42D 25/36 (86) International application number: PCT/US2021/071765 (87) International publication number: WO 2022/077012 (14.04.2022 Gazette 2022/15)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 07.10.2020 US 202063088937 P (71) Applicant: Wavefront Technology, Inc. Paramount, CA 90723 (US)	(72) Inventors: RICH, Christopher, Chapman Paramount, California 90723 (US) PHILLIPS, Roger, Winston Santa Rosa, California 95405 (US) PETERSEN, Joel, Mikael Paramount, California 90723 (US) (74) Representative: Houghton, Mark Phillip  Patent Outsourcing Limited 1 King Street Bakewell, Derbyshire DE45 1DZ Bakewell, Derbyshire DE45 1DZ (GB)